# SDR ASAA2014061508201

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 15, 2014
- Submitted: June 17, 2014
- Operation: Air carrier
- Aircraft: [N532AS](https://openairdocs.org/aircraft/N532AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 36346
- Aircraft time: 15,691 hours, 4,733 cycles
- System (JASC): [2160 · Cabin Temperature Control System](https://openairdocs.org/jasc/2160)
- Part: Sensor
- Part number: 412A160041
- Condition: Dirty
- Location: Cockpit Temp
- Stage of operation: TX
- How discovered: O
- Nature of condition: N
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2014061508201

## Discrepancy

CAB ZONE LIGHT ILLUMINATES ON RECALL AND EXTINGUISHES ON MASTER CAUTION RESET. ACFT GROUNDED.  PACK/ZONE TEMP CONTROLLER BITE IAW FIM 21-61, TASK 801, SHOWED FLIGHT DECK TRIM VALVE FAULT ON NR 2 ZTC BUT VERIFY TEST PASSED WITH NO FAULTS.  FOUND FLIGHT DECK TEMP SENSOR AND FILTER DIRTY.  CLEANED SENSOR AND CLEANED FILTER IAW MM 21-61-06-100-801.  PERFORMED CABIN TEMPERATURE CONTROL AND INDICATION. OPS TEST IAW MM 21-61-00-700-807-002 AND PACK/ ZONE TEMP CONTROLLER BITE IAW FIM 21-62 TASK 801.  ALL TESTS PASS.

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